CVE-2026-45495

Microsoft · Edge

A Remote Code Execution (RCE) vulnerability exists in the Chromium-based Microsoft Edge browser.

Executive summary

A high-severity Remote Code Execution vulnerability in Microsoft Edge could allow an attacker to gain unauthorized control over affected systems.

Vulnerability

This is a Remote Code Execution vulnerability residing in the Chromium engine powering Microsoft Edge. Successful exploitation typically requires a user to interact with malicious content, potentially allowing an attacker to execute arbitrary code within the context of the user's browser.

Business impact

The CVSS score of 8.8 reflects the high risk of RCE, which could lead to complete system compromise, data theft, and lateral movement within the corporate network. Given the ubiquity of web browsers in business environments, this vulnerability poses a severe threat to enterprise security.

Remediation

Immediate Action: Update Microsoft Edge to the latest version as soon as patches are released by Microsoft.

Proactive Monitoring: Monitor endpoint detection and response (EDR) telemetry for suspicious browser-related processes or unexpected code execution.

Compensating Controls: Utilize endpoint security solutions and browser security policies to restrict the execution of untrusted scripts or plugins.

Exploitation status

Public Exploit Available: false

Analyst recommendation

This vulnerability demands immediate attention due to the high risk of remote code execution. IT administrators must ensure that all instances of Microsoft Edge are updated to the latest version to prevent potential exploitation.